Psychologists have shown that we naturally tend to accept any information that supports what we already believe, as true, even if the information isn't reliable.
The information should be objective, fair, and balanced.
The absence of a viewpoint could present a bias.
Products and services can be sold...and so can ideas (religious, political, etc.)
Be especially careful when the viewpoint isn't apparent.
CRAAP Test Explained: Evaluating Your Sources
HOWLER Tutorial: CRAAP Test Explained: Evaluating Your Sources